Carl e



(No Model.)

C. E. AKELEY. HEAD REST.

No. 547,390. Patented Oct. 1, 1895.

ANDREW H.6RAHAM. mom'umuwAsmns TnHmL.

' indicated by the line 1 1, Fig.2. 3O

" NITED STATES ATEN'I Orricni.

CARL E. AKELEY, OF MILWVAUKEE, WISCONSIN, ASSIGNOR OF ONE-HALF TO EDWINH. VAN OSTRAND, OF SAME PLACE.

REST.

SPECIFICATION forming part of Letters Patent No. 547,390, dated October1, 1895.

Application filed a ch 8, 1895.

To all whom it may concern.-

Be it known that I, CABLE. AKELEY, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certain new and usefulImprovements in Head-Rests for Surgical Chairs; and I do hereby declarethat the following is a full, clear, and exact description of theinvention, which will enable others skilled in the art to which itpertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

My invention relates particularly to the supporting connections of thehead-rest and of the arm-rest with which it is provided. Its mainobjects are to facilitate the adjustment of the head. and arm rests andgenerally to simplify and improve the construction of this class ofdevices.

It consists in certain novel features in the construction andarrangement of the attachments of the head-rests, as hereinafterparticularly described,and pointed out in the claims.

In the accompanying drawings like letters designate the same parts inthe several figures.

Figure l is a vertical cross-section of a headrest embodying myimprovements in a plane Fig. 2 is a side elevation of the same, certainparts being shown in section. Fig. 3 is a horizontal crosssection in aplane indicated by the line 3 3, Fig. 1; and Fig. 4. is a detail view,on an enlarged scale, of one of the sockets in the sides of thehead-rest frame for the attachment of the arm-rest.

A design ates the head-rest, which comprises a frame B, consisting,essentially, of two diverging arms having in the outer sides near theirends sockets b b, a portion of which may be made octagonal or angular,as shown in Fig. 4, for a purpose to be hereinafter explained, andprovided at or near the center with a ball I).

O designates a split stem formed at its expansible end with a socket c,which is divided by the cleft in said stem and adapted to'embrace andhold the ball b.

D is a cylindrical spindle split through one end and fitted in avertical socket or hole provided for its reception in the bracket E ornections together.

Serial No. 540,974. (No model.)

other adjunctive part of the chair with which the head-rest is to beused. It is formed at its split or expansible end with a head d, whichhas a transverse opening through it, intersected lengthwise by the cleftin said spindle, so as to be expanded and contracted. In this openingthe stem C, preferably made square or angular to prevent its turning, isfitted and adjusted lengthwise. The spindle D is adjustable lengthwiseand adapted to turn in the bracket E.

F is a screw, preferably provided with a large hand-wheel or handle tofacilitate its manipulation, threaded in one side of the head d andadapted to engage at the tip with one side of the stem 0, passingthrough said head. When the screw F is loosened, the several supportingparts of the head-rest above de scribed are free to be adjusted one inanother, and the head-rest may be turned on its ballbearing 0 into anyposition with reference thereto. It may be moved forward or backward bysliding the stem 0 in the head (1 of spindle D. It may be raised orlowered by moving the spindleD vertically in the bracket E and may beswung to either side of the chair by turning said spindle in saidbracket.

When the head-rest is placed and adjusted as desired, it is secured inposition by locking the component parts of its supporting con- This iseffected by tightening the single screw F, which clamps the split socketc on the ball I) and simultaneously locks the stern O in the head ofspindle D and spreads and locks spindle D in the bracket E.

I provide the head-rest with a detachable and reversible arm-rest G,which is swiveled at one end to a flattened stem H at right anglesthereto, or approximately so. This stem is fitted and adjustable endwisein the corresponding opening formed transversely through the head '11 ofa spindle I. The spindle I has an octagonal or angular portion 1" nextto its head i and is fitted to the sockets b in the head-rest frame. Itis also split IOO b. By loosening the screwJ the stem H may be adjustedendwise in the head i, and the spindleImay be partially withdrawn fromthe socket Z) and turned therein, so as to bring the arm-rest G into anydesired position with reference to the head-rest. By tightening thescrewJon the stem H thelatter is secured in place in the head 2' and thespindle I is spread and locked in the head-rest frame, thereby securingthe arm-rest G in place.

The purpose of the octagonal or angular portion of the spindle I is toprevent it from turning in the sockets b; but by making the parts ofsufficient size and strength said spindle may be made of cylindricalform and held in place by spreading it in the socket b by means of thescrew J. I prefer, however, the construction shown,inasmuch as thesupporting connections of the arm-rest above mentioned maybe madelighter and it is not nec essary to set up the screw- J so tightly. Itwill be observed that the principal and main essential features of theadjustable supporting connections of the arm-rest are essentially likethose of the head-rest first described, and that a single fasteningsuffices to lock and hold all the parts in place.

Various changes and modifications in the minor details of the device maybe made within the spirit and intended scope of my invention.

I claim- 1. The combination with a rest forsurgical chairs, of anadjustable supporting attachment or connection comprising a stemattached to the rest, a split spindle adjustably held in a correspondingopening in a supporting part, and formed transversely to its axis withan opening in which the stem of the restis adjustable lengthwise, andmeans for spreading and locking said spindle in its support and ofsecuring said stem in said spindle, substantially as and for thepurposes set forth.

2. The combination with a rest for surgical chairs, of an adjustablesupporting connection or attachment comprising a stem to which the restis secured, a split spindle adapted to be held and to be turned inacorresponding opening in the supporting part and formed through one endwith a transverse opening in which said stem is adjustable lengthwise,and a screw for spreading and locking said spindle in its support andsecuring said stem in said spindle, substantially as and for thepurposesset forth.

3. The combination with a head-rest for surgical chairs, of anadjustable supporting attachment comprisinga stem connected with thehead-rest by a universal joint, a split spindle adjustable lengthwise ina vertical socket or hole in a part of the chair and provided in itssplit end with a transverse opening in which the stem of the head-restis adj ustably held, and a screw threaded in said spindle and adapted toengage the stem passing through it so as to simultaneously lock bothspindle and stem in place, substantially as and for the-purposes setforth.

4. The combination with a head-rest provided with a ball, of asplit stemhaving a socket in its expansible end adapted to hold said-ball bearing,a split spindle adapted to be turned and adjusted lengthwise in asupporting part and formed through its split end with a transverseopeningin which said stem is adjustable lengthwise, and a screw adaptedto simultaneously compress said socket on said ball, to secure said stemin said spindle, and to spread the spindle in its support, whereby therest is locked in any desired position by a single fastening,substantially as and for the purposes set forth.

5. The combination with a head-rest for surgical chairs, provided onopposite sides with outwardly opening sockets or holes, of a detachableand reversible arm-rest provided with a stem, a split spindle adapted tothe sockets or holes in opposite sides of the headrest and formedthrough its eXpansible end with'an opening in which the stem of thearmrest is adjustable lengthwise, and a screw adapted to spread andsecure said spindle in either socket or hole and to lock said stem insaid spindle, substantially as and for the purposes set forth.

Intestimony that I claim the foregoing as my own I affix my signature inpresence of two witnesses.

CARL E. AKELE'Y.

Witnesses:

A. W. HARD, CHAS. L. Goss.

